Spindle support for spools



Jan. 2, 1940.\\ J. UYTENBOGAART SPINDLE SUPPORT FOR SPOOLS Filed Jan. 25, 1937 2 sheets-sheet 1 J.' UYTENBOGAART 2,185,780

SHNDLE spPPoBTFon sPooLs 2 Sheets-Shee't 2 Filed Jan. 25, 1937 Patented Jan. 2, 1940 UNITED STATES SPINDLE SUPPORT FOR SPOOLS Johannes Uytenbogaart,

Berlin Lichterfelde,

Germany, assignor to North American Rayon Corporation, New York, N. Y., a corporation of Delaware f Application January 25, 1937, Serial No. 122,29

In Germany February 8, 1935 11 Claims.

The present invention relates to winding spools but more specically has for its purpose the provision of an improved rotatable support therefor.

In the winding of thread, yarn, etc., it is essential in many instances to wind the thread under an even tension throughout the winding operation. In order to accomplish this result it is necessary that the take-up speed of the thread be constant. As is well known, there are two methodsfor obtaining a constant speed of takeup. Onemethod is to -use a compensating gear arrangement whereby as the yarn body increases in diameter the speed of rotation of the winding spindle is reduced so that the peripheral speed-of theyarn body remains constant. The second method makes use of the yarn body itself. The spool rests .on av rotating cylinder and is driven thereby. By means of this latter method it is obvious that the peripheral speed of the yarn body remains constant and that further the necessity f having an expensive compensating gear arrangement iseliminated.

However, the use of yarn driven winding machines has certain disadvantages. As the yarn body increases in diameter the shafts of the spool holders, which rotate in grooves of bearing brackets, move upwardly. If, as is usual in the art, the shafts rotate in these grooves excessive wear results and replacement of the bearing brackets is necessary at frequent intervals and since in the winding of the threads even slight wear of these grooves causes uneven rotation of the spool and holder, uneven winding of the thread on the spool results.

The improved spool holder therefore is designed to rotate around its shaft and the shaft has merely a. sliding movement in the groove as the yarn body builds up. This movement is so slow that the wear on the bearing grooves is slight.

The improved spool support comprises an inner basic body and two circular lateral fiange members, which, due to their special construction not only support .the spool but are adapted to hold it in proper operating position. The inwardly extending ange surfaces are tapered forming a frustro-conical surface which supports the spool while at the same time allowing the said spool to be easily removed therefrom. The outer portions of the flange members are shaped to form abutment flanges to hold the spool immovable in an endwise direction.

One of the said flange members is formed integral with or xed to the basic member, while the other is removably mounted thereon for the` purpose of exchanging spools.

An important feature of the present invention is the portion of the structure which relates to the mounting and removability of the removable flange member.

It is one object of the present invention to 5 devise an improved rotatable support which will allow spools to be placed thereonand removed therefrom with a minimum of time Vand effort.'

Another object of the present invention is to devise a rotatable support which while allowing the easy removal of spools -therefrom will hold the said spools while in position thereon in-positive rotative engagement with 'the said support.

Still another object of the present invention is to devise a vspool holder which while holding the spool in positive engagement ls'adapted'to rotate around a nonrotatable shaft.

These and other objects of the present invention will in part become obvious and will inpart be pointed out in thelfollowing specification and appended claims when taken in conjunction'with the attached drawings, in which,.

Fig. 1 illustrates a longitudinal cross-section of the spindle support comprising the invention, with a spool mounted in position thereon;

Fig. 2 is a side elevation of the spool-holder and spool with the yarn body thereon and in position in the bearing brackets of a winding machine.

Fig. 3 is an end elevation of the parts shown 80 in Fig. 2 with a portion of a driving roller also being shown in end elevation; and

Fig. 4 is a detail view of the bayonet slot arrangement for securing the spool in place on the spool holder.

In the drawings in which like numerals 'of reference indicate like parts, I and 2 indicate the bearing brackets of the winding machine, (not shown). The brackets I and 2 have grooves 3 and 4 into which the ends of a spool spindle 5 extend and ride therein as the yarn body 6 increases in diameter. The ends of the spindle 5 are flattened as shown at 5a to prevent rotation of the shaft in the grooves I and 4. With this construction the only relative movement between bearing brackets and shaft end is a slow sliding'. movement as the yarn body increases in diameter. On the spindle 5 is mounted' a spacer sleeve l which may be pinned tothe spindle-5 as shown at la. At either end of the spacer sleeve are mounted ball bearing races 8 and 9. Ball bearings I0 rotate in the said races 8 and 8 in bearing rings I I and I 2 mounted in a core member I3 which is adapted to rotate around the spindle or shaft 5. Washers IIaand I2a are provided'to u retain 'the lubrication substance within the bearings.

-At one end of the core member I9 is mounted a flange or shoulder member I4 which is attached thereto by any suitable means, for ex.k

ample as by being made integral therewith or by means of a set screw Ila. At the other end is mounted the removable flange or shoulder I5. 'I'he flange members I4 and I5 have tapered surfaces I6 and Il which extend into and'support a spool body I 8.`

The removable flange member Ibis slidably mounted on a tube I9 which may form an integral part of the disc 20. The tube I9 is slidably mounted on the core member -I3 and attached thereto-by a bayonet slot connection 2I as shown in Fig. i of the drawings. A coillspring 22 tends to force the flange member I5 inwardly against the spool bodyv I8. A set screw 23 is provided 'to keep the flange member I 5 from sliding off the end of .the tube I9 during the removal of the said tube I 9 from the spindle support.

The disc 20 as shown in the drawings, may be made largel enough so that it protrudes over the spool to a considerable degree whereby it may be easily employed as a carrier disc for the winding thread. Y The periphery of thel disc 20 disc 20 whereby the notches of the disc catchthethread and carry it around thespool.

The spool body I8 carried by the spool holder rests on a driving cylinder 25 and is rotated thereby. 1

In operation, when a new spool is-to. be fastened into position on the spindle it is first placedover the core body I3 and forced against the stationary flange member Il. The removable flange member. I5 is then inserted in the spool together with the tube I9 and attached to the core member I3 by means of the bayonet slot connection 2|. The spring 22 which is of the expansion type presses againstthel disc 20 and the flange member I5 thus holding the spool securely in position on the spindle core.

The advantages of this invention are clearly apparent. By using the spool holder illustrated in the accompanying drawings and described in the foregoing specification, the replacement of nlled spools by empty ones is facilitated, and due to the novel structure of the said spool holder the shaft will not rotate in the bearing brackets, thus avoiding excessive wear therein, but the said spool holder and the spool will rotate around the said shaft with a minimum of friction, resulting in a more uniform yarn body than heretofore obtainable in the art. The locking means 2I permits ready removai of the tube I9 and disc 2l! and yet when the said tube-I9 and disc 20 are operatively attached to the. spool holder it forms a positive connection which causes them to rotate with the saidspool holder.

This application is a continuation in part of my copending application Ser. No. 61.335, led January 29, 1936. p

From a study of the foregoing description when made in conjunction with the attached drawings it is feltthe complete construction, advan tages and operation of the invention will be clear to those skilled in the art to which it relates.

What I claim is:

1. A spindle-support for'spools comprising a shaft, a core member rotatably mounted on said shaft, an abutment flange at one end of said core vmember and having a surface adapted to support an end of a spool, a removable abutment flange 'at the other end of said core member having a surface adapted to extend into the other end of the spool, and means to resiliently hold said removable'abutment against said spool.

2. A spindle support for spools comprising a shaft, a core member rotatably mounted on said shaft, .an abutment flange mounted rigidly at one end thereof and having a surface adapted to support one end of a spool, a removable abutment fiangeat the: other end thereof having a surface adapted to extend into the other end of the spool, a tube member,- said removable abut- Y ment vflange slidably mounted on said tube member, said tube member having a disc formed integral therewith, a spring mounted on said tube member and bearing against said disc and said abutment flange, and m'eans to attach said tube member to said core member.-

3. A' spindle support. foi-'spools comprising a shaft, a spacer sleeve flxedly mounted on said shaft, bearings fixedly mounted on'said shaft at ends of said sleeve. a core member, bearing races carried ,by said-core and rotating on said bearings, an abutment flange mounted at an end of said core and having a surface adapted to support a spool, a removable-abutment flange at the other end thereof having a surface adapted to extendinto the other end of the spool, a tube member, saidmemovable abutment flange being slidablymounted on' said tube member, said tube member having a disc formed integral therewith, aspring mounted on said tube mem-v ber and bearing against said disc and said abutment ange, and means to attach said tube member to Said core member.

4. A spindle support for spools comprising a shaft, a spacer sleeve iixedly mounted on said shaft, bearings fixedly mountedl on said shaft at ends of said sleeve, a core member, bearing races carried by said core and rotating on said bearings, an abutment flange mounted at one of said core and havinga surface adapted to support an end of a spool, a removable abutment flange at the other end thereof having a surface adapted to extend into the other end of the spool, and means to resiliently hold said removable abutment against said spool.

5. A spindle support for spools comprising a shaft, means to retain said shaft against rotation, a core member rotatably mounted on said shaft, an abutment flange at one end of said core member and having a surface adapted to support an end of a spool, a removable abutment flange at the other end of vsaid core member having a surface adapted to extend into the other end of the spool. and means to resiliently hold said removable abutment against vsaid spool.

6. A spindle support for spools comprising a shaft, a core member rotatably mounted on said shaft, an abutment flange mounted at one end of said core-member and having a surface adapted to support an end of a spool. a removable abutment flange at the other end of said core member and having a surface adapted to support the other end ofthe spool, a tube member aiaavso mounted on said core member and carrying said removable abutment fiange, and a disc mounted at one end of said tube membersaid disc being of a diameter larger than that of the said spool, and means to resiliently hold said-remov\A spool, said flange having a tapered surface adapted to be positioned between the coremember and the spool, a removable abutment flange atV the other end of said core member having a tapered surface adapted to be positioned between the core member andthe spool. and means to resiliently force said removable abutment toward said spool. l

8. A spindle support for spools, comprising a shaft, a core member carried on bearingson said shaft, shoulder means fixed to said core member for retaining one end of a spool on said core member, means removable from` said core member and having also a shoulder-thereon for retaining the other end of said spool on said core member, and resilient means for retaining said removable means inposition.

9. A spindle support for spools comprising a shaft having a flat face formed thereon near each end, aspacer sleeve xedly mounted on said shaft, bearings mounted on saidshaft at ends of said sleeve, a core member, bearing races carried by said core andl rotating on said bearings. an abutment flange mounted at one end of said core and having a tapered surface adapted to support a spool, a removable abutment flange at the other endY thereof having a tapered surface adapted to extend-into theother end of the spool, and means to resiliently hold said removable abutment against saidspool.

10. A Aspindle support for spools comprising a shaft having flat co-planar faces near its ends, a spacer sleeve xedly kmounted on said shaft, bearings mounted onsad shaft at ends of said sleeve, a core member, bearing races carried by said core and rotating on said bearings, an abutv ment flange mounted at one end of said core and having a tapered surface adapted to support a spool, a removable abutment flange at the other Y,end thereof having a tapered surface adapted to extendinto the other end ofthe spool, and means to resiliently hold said removable abutment against said spool.

1l. A spindle support for spools comprising a shaft having a at face formed thereon near each end, a spacer sleeve fixedly mounted on f saidshaft, bearings mounted on said shaft at ends of said sleeve, a core member,.bearing races carried by said core and rotating on said bearings, an abutment flange mounted at one end of said core and having a tapered surface adapted to support a spool, a removable abutment flange at the other end thereof having a tapered surface adapted to extend into the other end of the spool, 4a. tube member, said` removable abutment flange slidably mounted on said tube member, said tube member having a disc formed integral therewith, al yspring mounted on said tube member and bearing against said disc and said abutment flange, and means` to attach said tube member to said core member.v

JOHANNES UYTENBOGAART. A 

